Battery cell falling protection structure

Abstract

The utility model belongs to the field of battery protection, and particularly relates to a battery cell falling protection structure which comprises a battery cell and an adjusting sleeve, the upper end and the lower end of the battery cell are respectively connected with an end sleeve in a clamped mode, the side edge of each end sleeve is fixedly connected with a protruding block, a threaded rod is arranged in the adjusting sleeve in a sleeved mode, and the threaded rod is fixedly connected with the protruding block. The tail end of the threaded rod is fixedly connected with a clamping block, the clamping block is connected with the protruding block in a clamped mode, and an end cover is attached to the surface of the end sleeve. According to the utility model, the symmetrical threaded rod and the adjusting sleeve are combined, and the two-way threaded groove design is adopted to realize synchronous reverse movement, so that the L-shaped clamping blocks at the two ends are driven to do linear displacement, and the L-shaped clamping blocks and the clamping grooves of the convex blocks form three-dimensional constraint, so that the two corresponding end sleeves between the convex blocks carry out anti-falling protection on the main body part of the battery cell.

Description

Technical Field

[0001] This utility model relates to the field of battery protection technology, specifically a battery cell drop protection structure. Background Technology

[0002] A battery cell refers to a single electrochemical cell containing positive and negative electrodes, which is generally not used directly. Unlike batteries, which contain protection circuits and a casing and can be used directly, battery cells are classified into three types: aluminum-cased cells, pouch cells (also known as polymer cells), and cylindrical cells. Mobile phone batteries typically use aluminum-cased cells, while Bluetooth and other digital products often use pouch cells. Laptop batteries use a series-parallel combination of cylindrical cells.

[0003] A search revealed a utility model patent with patent grant publication number CN113906614B, which discloses a battery cell including a flexible shell, first and second electrodes, an electrolyte, and at least one sealed region. The flexible shell includes a peripheral seal at which the shell seals its periphery. Each of the first and second electrodes includes a first region and a second region protruding from the first region, wherein the first and second regions of the first and second electrodes are disposed within the flexible shell.

[0004] The battery cells mentioned in the comparative literature are pouch cells. Because of their soft outer shell and exposed electrode plates, these cells are easily damaged by drops before use and installation. Utility Model Content

[0005] The purpose of this invention is to provide a battery cell drop protection structure, which solves the problem that existing battery cells are easily damaged by drops.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a battery cell drop protection structure, comprising a battery cell and an adjustment sleeve, wherein both the upper and lower ends of the battery cell are snapped with end sleeves, and each end sleeve has a protrusion fixedly connected to its side. The adjustment sleeve is provided with a threaded rod inside, and a locking block is fixedly connected to the end of the threaded rod. The locking block engages with the protrusion. An end cap is attached to the surface of the end sleeve, and an electrode protective sleeve is provided on the end cap. The electrode plates of the battery cell are inserted into the electrode protective sleeve.

[0007] Preferably, the end sleeve has a groove inside, and the outline of the groove is the same as the outer outline of the battery cell. The groove facilitates the end sleeve to be snapped onto the end of the battery cell.

[0008] Preferably, the end sleeve has a waist groove in the middle, and the waist groove extends through the end sleeve. The waist groove facilitates the passage of the battery cell's electrode plates through the end sleeve.

[0009] Preferably, the upper and lower ends of the adjusting sleeve are provided with threaded grooves, and the threaded rod is located within the threaded grooves. The bidirectional threaded groove design allows for synchronous reverse movement between the threaded rods.

[0010] Preferably, a rubber retaining bead is fixedly connected to the bottom of the end cap, and the rubber retaining bead engages with the end cap. The rubber retaining bead increases the connection strength between the end cap and the end sleeve, while also facilitating their assembly and disassembly.

[0011] Preferably, the locking block is L-shaped and is an integral part of the threaded rod. Designing the locking block in an L-shape facilitates its lateral insertion into the protrusion.

[0012] Preferably, the protrusion has a slot inside, and the locking block is located within the slot. The locking block can form a three-dimensional constraint with the slot of the protrusion.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model adopts a combination of symmetrical threaded rod and adjusting sleeve, and then achieves synchronous reverse movement through bidirectional threaded groove design, which drives the L-shaped blocks at both ends to make linear displacement. The L-shaped blocks and the slots of the protrusions form a three-dimensional constraint, thereby enabling the two end sleeves corresponding to the protrusions to protect the main body of the battery cell from falling.

[0015] 2. This utility model provides an end cap on one of the end sleeves, and the end cap is snapped into the end sleeve by a rubber bead at its bottom. In addition, an electrode protective sleeve is provided on the end cap. In this way, the electrode plates of the battery cell can be protected, and the comprehensiveness of protection can be improved. Attached Figure Description

[0016] Figure 1 This is a perspective view of the overall structure of this utility model;

[0017] Figure 2 This utility model Figure 1 Schematic diagram of local structure Figure 1 ;

[0018] Figure 3 This utility model Figure 1 Schematic diagram of local structure Figure 2 ;

[0019] Figure 4 This utility model Figure 1 A front sectional view;

[0020] Figure 5 This utility model Figure 4 Enlarged view of point A;

[0021] Figure 6 This utility model Figure 4 Enlarged view of point B.

[0022] In the diagram: 1. Battery cell; 2. End sleeve; 3. Protrusion; 4. Adjustment sleeve; 5. Threaded rod; 6. Clamping block; 7. End cap; 8. Electrode protective sleeve; 9. Rubber retaining ball. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1 , Figure 2 , Figure 4 A battery cell drop protection structure includes a battery cell 1 and an adjusting sleeve 4. Both ends of the battery cell 1 are secured with end sleeves 2. The end sleeves 2 have internal grooves, the contour of which matches the outer contour of the battery cell 1. These grooves facilitate the engagement of the end sleeves 2 with the ends of the battery cell 1. A waist groove is formed in the middle of the end sleeve 2, extending through it. This waist groove allows the electrode plates of the battery cell 1 to pass through the end sleeves 2.

[0025] Please see Figure 1 , Figure 2 , Figure 4 , Figure 5 Each end sleeve 2 has a protrusion 3 fixedly connected to its side. The adjusting sleeve 4 has a threaded rod 5 installed inside. Both the upper and lower ends of the adjusting sleeve 4 have threaded grooves, and the threaded rod 5 is located within these grooves. Through the bidirectional threaded groove design, synchronous reverse movement between the threaded rods 5 can be achieved. A locking block 6 is fixedly connected to the end of each threaded rod 5, engaging with the protrusion 3. The locking block 6 is L-shaped and integrally formed with the threaded rod 5. The L-shaped design of the locking block 6 facilitates lateral insertion into the protrusion 3. The protrusion 3 has a slot inside, and the locking block 6 is located within this slot. The locking block 6 and the slot of the protrusion 3 form a three-dimensional constraint.

[0026] Please see Figure 1 , Figure 3 , Figure 4 , Figure 6 An end cap 7 is attached to the surface of the end sleeve 2, and an electrode protective sleeve 8 is connected to the end cap 7. The electrode plates of the battery cell 1 are inserted into the electrode protective sleeve 8. A rubber bead 9 is fixedly connected to the bottom of the end cap 7, and the rubber bead 9 engages with the end cap 7. The rubber bead 9 increases the connection strength between the end cap 7 and the end sleeve 2, and facilitates their assembly and disassembly.

[0027] The specific implementation process of this utility model is as follows: In use, after the battery cell 1 is produced, both its upper and lower ends are inserted into the end sleeve 2, and the end cover 7 is fastened on the upper end sleeve 2 and fixed by the rubber ball 9. At this time, the electrode protective sleeve 8 on the end cover 7 is fitted onto the electrode plate of the battery cell 1 to protect the electrode plate. Finally, the locking block 6 on the threaded rod 5 is inserted horizontally into the protrusion 3 of the end sleeve 2. Then, the adjusting sleeve 4 is screwed on. Then, the synchronous reverse movement between the threaded rods 5 is realized through the bidirectional threaded groove design of the adjusting sleeve 4, which in turn drives the L-shaped locking blocks 6 at both ends to make linear displacement. The L-shaped locking blocks 6 and the locking groove of the protrusion 3 form a three-dimensional constraint, so that the two end sleeves 2 protect the main body of the battery cell 1 from falling.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A battery cell drop protection structure, comprising a battery cell (1) and an adjustment sleeve (4), characterized in that: The battery cell (1) is fitted with end sleeves (2) at both ends. Each end sleeve (2) is fixedly connected to a protrusion (3) on its side. The adjusting sleeve (4) is fitted with a threaded rod (5) inside. The end of the threaded rod (5) is fixedly connected to a locking block (6). The locking block (6) engages with the protrusion (3). An end cap (7) is attached to the surface of the end sleeve (2). An electrode protective sleeve (8) is connected to the end cap (7).

2. The battery cell drop protection structure according to claim 1, characterized in that: The end sleeve (2) has a groove inside, and the outline of the groove is the same as the outer outline of the battery cell (1).

3. The battery cell drop protection structure according to claim 1, characterized in that: The end sleeve (2) has a waist groove in the middle, and the waist groove passes through the end sleeve (2).

4. The battery cell drop protection structure according to claim 1, characterized in that: The upper and lower ends of the adjusting sleeve (4) are provided with threaded grooves, and the threaded rod (5) is located in the threaded groove.

5. The battery cell drop protection structure according to claim 1, characterized in that: A rubber bead (9) is fixedly connected to the bottom of the end cap (7), and the rubber bead (9) is engaged with the end cap (7).

6. The battery cell drop protection structure according to claim 1, characterized in that: The card block (6) is L-shaped and is an integral structure with the threaded rod (5).

7. The battery cell drop protection structure according to claim 1, characterized in that: The protrusion (3) has a slot inside, and the card block (6) is located in the slot.

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